Easy Triple Berry Crumble Recipe (with Frozen Berries!) (2024)

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by Natalie on August 25, 2015 — updated December 16, 2022 // 172 Comments »

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5 from 804 ratings

The easiest triple berry crumble recipe, made with frozen berries! Topped with a delicious, buttery oat crumble topping and ready in just 10 minutes!

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What Makes This Recipe Great

If you’re like me, you crave perfect spring berries all year long. Thanks to this Frozen Berry Crumble Recipe, I can enjoy fresh berry desserts any time! My freezer is always stocked with a huge back of frozen mixed berries from Costco. Whether I decide to make a smoothie, this dessert, or anything else with berries, that frozen bag is my go-to!

The best part? Frozen berries aren’t just good frozen. Thaw them out, and you have yourself perfect, juicy berries for whatever dish you plan to make.

This easy berry crumble comes together in just 10 minutes and features the yummiest oat crumble topping made with rolled oats, brown sugar, all-purpose flour, and cold butter! A simple, perfect summer dessert the whole family will love any time of year!

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Note: You can also watch this recipe video on YouTube.

How to Make This Berry Crumble Recipe

Frozen fruit is best because it is frozen when it is at peak freshness. It has tons more flavor and nutrients. Plus, frozen organic fruit is much cheaper than fresh. Win-win!

Since the berries are getting baked, it is perfect to use frozen berries. They’re going to get all soft and mushy anyway. Even better? You can cook it with frozen berries! No need to thaw them. You can have this mixed berry crumble recipe prepped and in the oven in less than 10 minutes. Love that!

Ingredient Notes

Easy Triple Berry Crumble Recipe (with Frozen Berries!) (3)
  • Flour & White Sugar: The berry filling comes together quite easily. Because the berries will sweat a bit, I like to thicken them with some added flour, along with a little granulated sugar for added sweetness. Some recipes use sugar and cornstarch, but I prefer flour!
  • Lemon Zest: Don’t miss this step! The lemon zest adds brightness to the berry mixture, which is a must.
  • Frozen Berries: My favorite frozen berries to use are a combination of raspberries, blueberries, and blackberries. I love the fruit mixture, but you could use just 1 berry or any combination of other berries. For larger fruit/berries like strawberries, cherries, mango, etc, I will pulse the frozen fruit in the food processor a few times so the chunks are more bite-size.
  • Oat Crumble Topping: The real star of this frozen berry crumble is the oat crumble topping. Crunchy and toasty rolled oats mixed with unsalted butter, flour, and brown sugar. It crisps up atop the berries and gives this dessert a perfect sweet oat crumble crunch. Literally, the best oat crumble topping I have ever had!

Step-by-Step Instructions

Easy Triple Berry Crumble Recipe (with Frozen Berries!) (4)
  1. In a large bowl, make the berry filling by combining all ingredients and tossing to combine. Set aside.
  2. In a separate mixing bowl, make the oat crumble by combining all ingredients, then use your fingers to pinch the butter and incorporate it with the dry ingredients. Keep pinching and tossing together with your hands until evenly combined. You will be left with many pea-sized pieces of butter mixed in with the oat mixture. Set aside.
  3. Pour the berry filling into a 1-1/2 quart baking dish (or an 8×8 Pyrex baking dish, a pie baking dish, or even a 12″ cast iron skillet). Top with the oat crumble topping and spread to an even layer.
  4. Bake uncovered until the berry filling is bubbling and the oat crumble top is golden brown about 1 hour. Let cool for 1 hour before serving.
  5. Serve at room temperature. Delicious with ice cream or whipped cream.
Easy Triple Berry Crumble Recipe (with Frozen Berries!) (5)

Expert Tips

Make-Ahead: You can make this up to step 4, then cover the unbaked crumble tightly and refrigerate for up to 5 days or freeze for up to 6 months. Bake it thawed or fully frozen until golden and bubbling, about 1 hour.

Fresh Berries: This same recipe also works for fresh fruit too! Just substitute the same amount of fresh berries for frozen. No other substitutions or changes in baking time are needed.

Gluten-Free: Swap the regular flour for all-purpose gluten-free flour to make this recipe gluten-free. Bob’s Red Mill makes excellent gluten-free rolled oats that would work perfectly as well.

Serving Tips

Top this delicious dessert with a scoop of vanilla ice cream, and you’ve got the easiest and most amazing dessert to serve to guests or your family! A true crowd pleaser, trust me!

Storage Tips

Store leftovers in an airtight container in the refrigerator for up to 5 days. Heat up in the microwave and serve with vanilla ice cream.

Easy Triple Berry Crumble Recipe (with Frozen Berries!) (6)

Recipe FAQs

Can I make this easy berry crumble with just one type of frozen berry?

Yes! Sub in whatever berry you love. This frozen berry dessert recipe would work so well with frozen strawberries, raspberries, etc. So grab your favorite frozen berry and transform this recipe into Frozen Blackberry Crumble, Frozen Blueberry Crumble, and more! The instructions stay exactly the same regardless of the berries you choose!

Can I make this berry crumble recipe dairy-free?

I have not tried to do this myself, but the substitutions for a dairy-free berry crumble would be pretty easy. Simply swap out the butter in the oat crumble topping for vegan butter (I like Miyokos!), and serve with dairy-free vegan ice cream. Let me know how this turns out in the comments!

Can I freeze this frozen berry dessert and make it later?

Yes! Simply freeze leftovers in a freezer-safe, airtight container for up to 6 months. Thaw overnight in the refrigerator or go straight from frozen and bake at 350F until warmed and bubbly.

Easy Triple Berry Crumble Recipe (with Frozen Berries!) (7)

More Ways to Use Frozen Berries

Keto Berry Shortcake
Paleo Chia Seed Jam with Frozen Berries
Whole30 + Keto Raw Berry Crisp
Whole30 Chicken with Berry Salsa (Keto, Paleo)
Whole30 + Keto Balsamic Chicken Berry Salad

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Easy Triple Berry Crumble Recipe (with Frozen Berries!) (14)

Easy Triple Berry Crumble Recipe (with Frozen Berries!)

Servings: 6 servings

Prep Time: 10 minutes mins

Cook Time: 1 hour hr

Total Time: 1 hour hr 10 minutes mins

The easiest triple berry crumble recipe, made with frozen berries! Topped with a delicious, buttery oat crumble topping and ready in just 10 minutes!

5 from 804 ratings

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Ingredients

Berry Filling

  • 4 cups frozen mixed berries*, NOT thawed (about 24 ounces frozen fruit)
  • 3 tablespoons granulated sugar
  • 3 tablespoons all purpose flour
  • zest from 1 lemon
  • pinch of salt

Oat Crumble Topping

  • 1 cup old fashioned rolled oats
  • 1/2 cup brown sugar
  • 6 tablespoons all purpose flour
  • 1/2 cup butter, cut into small cubes

Instructions

  • Preheat oven to 350 degrees with the oven in the middle position.

  • In a mixing bowl, make the berry filling by combining all ingredients and tossing to combine. Set aside.

  • In a separate mixing bowl, make the oat crumble by combining all ingredients, then use your fingers to pinch the butter and incorporate with the dry ingredients. Keep pinching and tossing together with your hands until evenly combined. You will be left with many pea sized pieces of butter mixed in with the oat mixture. Set aside.

  • Pour the berry filing into a 1-1/2 quart baking dish (or 8×8 pyrex baking dish, a pie baking dish, or even 12" cast iron skillet). Top with the oat crumble topping, and spread to an even layer.

  • Bake uncovered until the berry filling is bubbling, and the oat crumble is golden brown, about 1 hour. Let cool for 1 hour before serving. Serve room temperature. Delicious with ice cream or whipped cream.

  • See the Recipe Notes below for more tips, FAQ's and ingredient substitutions.

Notes

Expert Tips

Make-Ahead: You can make this up to step 4, then cover the unbaked crumble tightly and refrigerate for up to 5 days or freeze for up to 6 months. Bake it thawed or fully frozen until golden and bubbling, about 1 hour.

Frozen Berries: My favorite frozen berries to use are a combination of raspberries, blueberries and blackberries. But you could use just 1 berry, or any combination of other berries. For larger fruit/berries like strawberries, cherries, mango, etc I will pulse the frozen fruit in the food processor a few times so the chunks are more bite size.

Fresh Berries: This same recipe also works for fresh fruit too! Just substitute the same amount of fresh berries for frozen. No other substitutions or changes in baking time are needed.

Gluten-Free: Swap the regular flour for all-purpose gluten-free flour to make this recipe gluten-free. Bob’s Red Mill makes excellent gluten-free rolled oats that would work perfectly as well.

Serving Tips

Top this delicious dessert with a scoop of vanilla ice cream, and you’ve got the easiest and most amazing dessert to serve to guests or your family! A true crowd pleaser, trust me!

Storage Tips

Store leftovers in an airtight container in the refrigerator for up to 5 days. Heat up in the microwave and serve with vanilla ice cream.

Cuisine: American

Course: Dessert

Author: Natalie

Calories: 378, Total Carbs: 56.5g, Protein: 3.8g, Fat: 15.7g, Fiber: 4g, Net Carbs: 53g

Did you make this recipe?Please Leave a comment and give this recipe a rating!

1 Hour + Desserts Fall Freezer Friendly Recipes Spring Summer Vegetarian/Vegan Winter

posted by Natalie on August 25, 2015

172 Comments / Leave a Comment »

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    172 Comments on “Easy Triple Berry Crumble Recipe (with Frozen Berries!)”

  1. Lori February 14, 2024 @ 12:02 pm Reply

    Easy Triple Berry Crumble Recipe (with Frozen Berries!) (15)
    Excellent recipe!!! I first made it as is ( minus lemon zest), and found it was too little crisp for the berries, but my husband loved the tartness. Second time around I doubled the amount of crisp and it’s a perfect balance of sweet and tart! This will be my go to recipe for berry crisp from now on

  2. Linda January 17, 2024 @ 1:02 pm Reply

    Easy Triple Berry Crumble Recipe (with Frozen Berries!) (16)
    I used sugar substitute and added chopped walnuts and it tastes fabulous!

  3. Sandy December 13, 2023 @ 4:53 am Reply

    Planning to make this today for a party. Just wondering if the butter should be at room temp or can be cold.

    • Natalie December 29, 2023 @ 7:40 pm Reply

      I prefer cold!

      So honored you’re making it. Enjoy!

  4. Mkhan December 10, 2023 @ 3:33 pm Reply

    Easy Triple Berry Crumble Recipe (with Frozen Berries!) (17)
    Made this as stated, and it turned out amazing!!! Such a great addition to my dessert table after a family dinner.

    • Natalie December 29, 2023 @ 8:20 pm Reply

      Love to hear this! So glad you liked it!

  5. Laura November 14, 2023 @ 7:53 pm Reply

    Can you substitute the berries with peaches or nectarines?

    • Natalie December 29, 2023 @ 7:37 pm Reply

      Yes! Same amount needed for substitution.

  6. Kim September 5, 2023 @ 5:45 pm Reply

    Easy Triple Berry Crumble Recipe (with Frozen Berries!) (18)
    Made with sugar substitute for a diabetic friendly recipe. It was wonderful and gone by the next day. Will definitely make again.

    • Natalie November 1, 2023 @ 9:36 pm Reply

      Oh yay! So glad to hear it!

  7. Michele August 20, 2023 @ 10:29 am Reply

    Easy Triple Berry Crumble Recipe (with Frozen Berries!) (19)
    I have prepared this recipe at least 10x. It never fails. Add a little less sugar to the berries as qqqthey give natural sweetness. I have added cinnamon and nutmeg with crumble topping.

    Again this recipe is fabulous. Cook 45-60 minutes max and let rest 20 minutes add ice cream and enjoy!

    • Natalie November 1, 2023 @ 9:24 pm Reply

      Thanks so much Michele! I appreciate your tips and love that you keep coming back to this recipe! Such an honor!

  8. Jenn July 29, 2023 @ 2:02 pm Reply

    Easy Triple Berry Crumble Recipe (with Frozen Berries!) (20)
    Simple and delicious. I needed a quick dessert and this was perfect. Everyone loved it.

    • Natalie November 1, 2023 @ 9:09 pm Reply

      Thank you, Jenn! So happy to hear you enjoyed it!

  9. JD Foreman July 5, 2023 @ 8:57 am Reply

    Good recipe. Did tweak a little. Added lemon juice so it was tart. Substituted cornstarch for flour in the filling. Substituted ground pecans for flour in the topping & plant butter for butter. Added more chopped pecans to the topping to make it crunchy. Okay so I tweaked more than a little but I needed a gluten & dairy free version

    • Natalie August 8, 2023 @ 11:46 am Reply

      I love this! So glad it turned out well and that you were able to tweak it to your dietary needs!

  10. Tina Qualey July 5, 2023 @ 6:53 am Reply

    Easy Triple Berry Crumble Recipe (with Frozen Berries!) (21)
    I made this for a family dinner and doubled the recipe, making 12 servings using Wyman’s frozen mixed berries. I modified the recipe because I did not have a lemon to zest and added cinnamon to the crumble topping. There were seven adults and two kids under 5. I was hoping for leftovers for breakfast options for my 4 years old granddaughter.
    To say the least, it was a huge hit, and there was none left. Everyone kept raving about how wonderful this crumble was. I will definitely make this wonderful dessert again.

    • Natalie August 8, 2023 @ 11:32 am Reply

      Thank you for sharing, Tina! I love hearing this, especially when it’s a hit with both adults and kids! What an honor! We never have any leftovers either :) Next time, triple it! haha.

  11. Yvonne June 27, 2023 @ 7:38 am Reply

    Hello,

    I’m making this for July 4th weekend. I see it says you can make ahead up to step 4 but then in the comments it says make ahead and bake.
    What do you recommend? I only want to make it ahead a day in advance since I don’t want to be cooking when company is at the house.

    • Natalie August 8, 2023 @ 11:17 am Reply

      I would wait to bake it until the day before or day of! Will taste the freshest, with the crunchiest oat crumble on top. Yum! If you want to prep it, I would make it up to step 4 (so make the filling and topping and assemble), then refrigerate UNBAKED. Bake it the day before or day of at 350ºF for about 1 hour until golden and the filling is bubbling.

      Enjoy! This is one of our favs!

  12. Kim May 8, 2023 @ 7:50 pm Reply

    Easy Triple Berry Crumble Recipe (with Frozen Berries!) (22)
    I made this recipe with Splenda. It was a big hit. Will definitely make this again.

    • Natalie May 26, 2023 @ 12:45 pm Reply

      So happy to hear this!

      • Cam June 14, 2023 @ 8:34 am Reply

        We are trying to make healthier food choices and I saw that you used Splenda. I was wondering how much did you choose.
        Thank you, Cam.

        • Natalie August 8, 2023 @ 10:50 am Reply

          I’m not sure this reader will see this. But usually you use 1/4 the amount of splenda when swapping it for white sugar. If you try this let me know how it turns out!

Easy Triple Berry Crumble Recipe (with Frozen Berries!) (2024)

FAQs

How to bake with frozen berries? ›

Gently and quickly stir the frozen berries into the batter. You'll see a few inevitable streaks of blue, but the entire batter shouldn't turn blue. If that starts to happen – stop stirring, you're done! Make sure not to overmix the muffin batter, or the blueberry juice will still bleed.

What are the three berries in triple berry? ›

Try this blend of Wyman's fresh-frozen blueberries, raspberries, and blackberries in your next smoothie, pie, or sorbet. Colorful, sweet, and bursting with berry goodness, our fresh-frozen triple berry blend in resealable bags should be a mainstay of your healthy freezer!

How long to cook frozen berries? ›

You can make frozen berries safe to eat by either:
  1. bringing them to the boil, or.
  2. cooking them at a temperature over 85°C for at least 1 minute.
Nov 18, 2022

Do I thaw frozen berries before baking? ›

If cooking your berries into a pie filling, you may need to add additional thickening agents because frozen berries tend to release more liquid than fresh and will lead to a runnier consistency. For best results in your baking, don't defrost the berries before use but instead toss them in flour.

What fruit is the miracle berry? ›

Synsepalum dulcificum is a plant in the Sapotaceae family, native to tropical Africa. It is known for its berry that, when eaten, causes sour foods (such as lemons and limes) subsequently consumed to taste sweet. This effect is due to miraculin.

What is the king of all berries? ›

Blackcurrants was originally grown in Europe, particularly in France, where it got the Blackcurrants name and reputation as the healthiest of the berries. Thus, the term King of the Berries was established. This reputation quickly spread to other parts of the world, and New Zealand adopted this berry as its own.

What are the top 3 berries? ›

Meet the best of the berry crop:
  • Blueberries. Although they contain more sugar than other berries (15 grams per cup, compared to 5 grams for raspberries), this easy-to-find berry contains many different types of phytonutrients. ...
  • Blackberries. ...
  • Strawberries. ...
  • Other Great Berry Choices.

What happens if you eat too many frozen blueberries? ›

Can you eat too many blueberries? While blueberries are an amazing fruit, like anything, too much of a good thing is still too much. Eating more than a cup at once may result in some gastrointestinal distress. It may also spike your blood sugar.

How do you keep frozen berries from getting soggy? ›

Make sure that they are on a single layer and not touching each other. Sprinkle sugar over the top of each strawberry. Put them in the freezer at the lowest temperature for a faster freezing time. When frozen, you can bag them up.

How to bake using frozen blueberries? ›

Can you substitute frozen blueberries for fresh in baking? Yes. If they were frozen unwashed, then rinse them quickly and pat dry. Take a spoonful of the flour from your recipe and toss the berries quickly and gently, then fold into the batter.

Can you get hep A from frozen fruit? ›

Traceback and epidemiological investigations showed that people with outbreak-associated cases purchased the same retail brand of frozen organic strawberries prior to becoming ill. As of September 4, 2023, a total of 10 outbreak-associated cases of hepatitis A were reported from 4 states.

Do frozen berries need to be washed? ›

The American Frozen Food Institute (AFFI) clarifies that frozen fruit is safe and ready-to-eat straight from the package, no need to wash it. This is due to its higher levels of acidity and sugar, making it unlikely that harmful bacteria could grow on it at freezer temperatures.

How to prepare frozen berries? ›

Stovetop directions: place the frozen fruit in a saucepan on medium heat, stirring occasionally. The fruits will begin to thaw and release their juices. When heated through, remove from the heat. Microwave directions: in a microwave-safe bowl, heat the frozen fruit at 600W for 1 minute, then stir.

How to thaw frozen berries for baking? ›

Use the defrost setting on your microwave to the the fruit. Defrost them in small batches, we recommend no more than 1 cup at a time. Place the berries in a single layer on a plate, leaving space between the berries or fruit. For larger fruits such as Strawberries, set the time to 60 seconds.

Can you put frozen fruit in the oven? ›

Adjusting Your Baking Time

The only thing to keep in mind when baking a pie with frozen fruit is that it may warrant an extra 10 or 15 minutes in the oven, unless you thaw the fruit all the way to room temperature.

Do you thaw frozen berries before making a pie? ›

Frozen berries are a great alternative to fresh for winter baking. Many people fret about whether they should thaw the fruit first, but you don't need to.

How do you defrost berries for baking? ›

Put them in a microwave on "defrost" for 30 seconds. Check the berries and repeat until the berries are defrosted (about 30 seconds for raspberries andblueberries, 1 minute for blackberries, and up to 2 minutes for strawberries). Immediately remove berries from the microwave to stop any cooking.

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